Description Known as chili or red hot pepper, Cayenne may act as a catalyst for other herbs. Native to tropical America, it has become a well-known ingredient in the cuisines of many parts of the world. It has been extensively used in folk medicine. Available in 450 (mg) Whole Herb Capsules. Puritan's Pride's preservative-free gelatin capsules contain pure milled herb powder. Puritan's Pride's Natural Whole Herb products utilize ground plant parts to provide the natural components found in nature.